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<td nowrap="true" class="pageTitle">概念：用例视图</td><td width="100%">
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<td valign="top">需求规程中使用了名为用例视图的体系结构视图，作为计划迭代的技术内容所需的基础。</td>
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<th scope="row" class="sectionTableHeading">相关元素</th><td class="sectionTableCell">
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<a href="./../../../core.base_rup/tasks/prioritize_use_cases_E6E4D9A0.html" guid="{6E23D919-D149-43C2-9D37-8AF77B667CA8}">划分用例优先级</a>
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<a href="./../../../core.base_rup/workproducts/rup_software_architecture_document_C367485C.html" guid="{6F49641A-ED10-47B5-9E5D-3F90A6BF3006}">软件体系结构文档</a>
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<td class="sectionTableSingleCell"><a id="XE_use-case_view__introduction_to" name="XE_use-case_view__introduction_to" class="index" key="用例视图（use-case view）" text="简介"></a> 
<p>
    若要提供计划迭代的技术内容的基础，一个称为<b>用例视图</b>的<a class="elementLinkWithUserText" href="./../../../core.base_rup/guidances/concepts/software_architecture_4269A354.html" guid="3.066252221588648E-305">体系结构视图</a>将用于以下<a class="elementLinkWithUserText" href="./../../../core.base_rup/disciplines/rup_requirements_discipline_8EEB5209.html" guid="_ydt60dnmEdmO6L4XMImrsA"><u><font     color="#0000ff">需求</font></u></a>规程。系统只有一个用例视图，说明用例和场景，用例和场景包含对体系结构有重要意义的行为、类或技术风险。用例视图在每次迭代中进行初始优化和考虑。
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        <area shape="rect" alt="参与者" coords="344,172,397,234" href="./../../../core.base_rup/workproducts/rup_actor_1F9CE9.html" guid="{0EEBBA43-F5C6-4594-9F06-65D99F7556DF}"></area>
        <area shape="rect" alt="用例包" coords="354,101,477,164" href="./../../../core.base_rup/workproducts/rup_usecase_package_A96DDE65.html" guid="{102E424E-98DE-4F54-B1A0-8F8FD54D6BEE}"></area>
        <area shape="rect" alt="顶级包" coords="360,31,476,85" href="./../../../core.base_rup/workproducts/rup_design_package_8376BC8E.html" guid="{80CC5437-F481-487B-A69B-957D9D236D8D}"></area>
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    </map><img height="241" alt="附带文本中描述的图。" src="./../../../core.base_rup/guidances/concepts/resources/co_ucv1.gif" width="505" usemap="#fpmap0" border="0" />
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    用例视图显示对体系结构很重要的用例模型子集、用例和参与者子集。
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<p>
    需求活动后的分析、设计和实施活动以<a class="elementLinkWithUserText" href="./../../../core.base_rup/guidances/concepts/software_architecture_4269A354.html" guid="3.066252221588648E-305"><b>体系结构</b></a>的概念为中心。该体系结构的产生和验证是早期迭代的重点，特别是在<a class="elementLinkWithUserText" href="./../../../core.base_rup/customcategories/elaboration_6A203A50.html" guid="_-kFhcCVuEdqSZ9OimJ-AzA">精化</a>阶段。体系结构由许多不同的<a class="elementLinkWithUserText" href="./../../../core.base_rup/guidances/concepts/software_architecture_4269A354.html" guid="3.066252221588648E-305">体系结构视图</a>来表示，这些视图实际上是说明“对体系结构有重要意义”模型元素的选萃。
</p>
<p>
    还有其他四个视图：<a class="elementLinkWithUserText" href="./../../../core.base_rup/guidances/concepts/logical_view_C135365E.html" guid="6.901347907565747E-305">逻辑视图</a>、<a class="elementLinkWithUserText" href="./../../../core.base_rup/guidances/concepts/process_view_E3DD0B09.html" guid="6.45284088262517E-306">流程视图</a>、<a class="elementLinkWithUserText" href="./../../../core.base_rup/guidances/concepts/deployment_view_64CB74A6.html" guid="2.8416696002928195E-305">部署视图</a>和<a class="elementLinkWithUserText" href="./../../../core.base_rup/guidances/concepts/implementation_view_E373E3B6.html" guid="4.693519701160983E-305">实施视图</a>。这些视图在<a class="elementLinkWithUserText" href="./../../../core.base_rup/disciplines/rup_analysis_design_discipline_29760231.html" guid="_ydt62NnmEdmO6L4XMImrsA"><u><font     color="#0000ff">分析与设计</font></u></a>和<a class="elementLinkWithUserText" href="./../../../core.base_rup/disciplines/rup_implementation_discipline_263E22DB.html" guid="_yd3ExNnmEdmO6L4XMImrsA"><u><font     color="#0000ff">实施</font></u></a>规程中进行处理。
</p>
<p>
    这些体系结构视图记录在<a class="elementLinkWithUserText" href="./../../../core.base_rup/workproducts/rup_software_architecture_document_C367485C.html" guid="{6F49641A-ED10-47B5-9E5D-3F90A6BF3006}">软件体系结构文档</a>中。可以添加不同的视图（例如安全视图）来说明软件体系结构的其他特定方面。
</p>
<p>
    所以，体系结构视图在本质上可以视为构建的模型的抽象或者简化，在这里您不显示详细信息，从而使重要特征更加明显。对于提高在系统开发过程中构建的任何模型的质量，体系结构是一种重要的方法。
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